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World Journal of Engineering
Research and Technology

An International Peer Reviewed Journal for Engineering Research and Technology

ISSN 2454-695X

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Abstract

COMPARATIVE ANALYSIS OF COMPRESSIVE STRENGTH OF CONCRETE PRODUCED WITH COARSE AGGREGATES FROM DIFFERENT PARENTAL ROCKS

*Ayeni I. S., Olulope R. O. and Ogunleye O. O.

ABSTRACT

This research work aims at comparing the compressive strength of concrete produced with coarse aggregates from igneous, sedimentary and metamorphic rocks. Coarse aggregates samples were obtained from the three named parenting rocks. Slump test was carried out on concrete produced with coarse aggregates from the three selected rocks to determine their workability and water cement ratio. The igneous, sedimentary and metamorphic rocks gave the following average slump 80mm, 71mm and 62mm respectively. Concrete cubes of 150mmX150mmX150mm, mixing ratio 1:2:4 with water cement ratio 0.65 were prepared and cured by immersion in clean water for different ages (7days, 14days, 21days, and 28days). The compressive strengths of these cubes were determined and compared with one another. The compressive strength of concrete produced with coarse aggregates from igneous, sedimentary and metamorphic rocks varied from 11.N/mm2 to 25.04N/mm2, 10.08N/mm2 to 24.11N/mm2 and 7.61N/mm2 to 22.03N/mm2 respectively. Also, the density of concrete produced with coarse aggregates from igneous, sedimentary and metamorphic rocks gave the following values 2439kg/m3, 2403kg/m3 and 2379kg/m3 respectively. The compressive strength of concrete produced from each rock increased as the curing days increase. Concrete from igneous rock gave the highest compressive strength, followed by sedimentary rock and metamorphic rock.

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